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Minerals And Rocks
Question
Describe the features of pyroxene.
Solution
The features:
(i)Pyroxene consists of calcium, aluminum, magnesium, iron and silica.
(ii)Pyroxene forms 10 percent of the earth’s crust.
(iii)It is commonly found in meteorites. It is in green or black colour.
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Some More Questions From Minerals And Rocks Chapter
Write the examples of igneous rocks.
What is a sedimentary rock ?
Write some main sedimentary rocks.
Which important minerals are found in metamorphic rocks?
State one example of hard rock and soft rock.
The process of physical and chemical changes affecting sediments during their conversion into solid rocks.
Structure in metamorphic rocks in which minerals are drawn out into long, thin pencil like objects all in parallel alignment.
The smooth planer surfaces of weakness along which minerals have pronounced tendency of split.
Few large crystals imbedded into material of smaller crystals.
What do you mean by rocks ? Name the three major classes of rocks.
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